Quoting pages 1167 of Industrial Collaboration in Nazi-Occupied Europe: Norway in Context:

For small or middle sized companies it was difficult to refuse [Fascist] orders for fear of going bankrupt, which would result in, for example, staff unemployment. With the memories of the Great Depression of the 1930s still very fresh in their minds, refusing [Fascist] orders seemed unwise. This meant that these firms were faced with a dilemma: “not accepting the orders from the only available customer—the occupier—would threaten the companies’ continued existence”. Many firms simply couldn’t refuse working for Germany.

(In other words, the government did not have to consciously force Dutch capitalists to cooperate.)

It is remarkable, however, that Dutch business accepted [Fascist] orders willingly and that there is little evidence to suggest that many firms engaged in deliberate underproduction, although some examples can be found. There was some room for manoeuvre, but Dutch industry chose not to use it.

(Emphasis added.)

Pages 1267:

Most entrepreneurs showed themselves to be willing to accept [Fascist] orders, and the occupier generally met very little resistance from Dutch industry. Basically, life had to continue as normally as possible; accommodation was for the most part determined by economic considerations. That is not to say that individual Dutch firms and businessmen did not face dilemmas or that there was no hesitation at all to restart production. There were a few companies that refused [Fascist] orders in 1940, but their number was so limited that the [Fascists] preferred to not even pay attention to them.